Elevator



(No Model.) V 2 Sheets-Shee1: 1. G. W. LEVALLEY.

ELEVATOR.

No. 311.335. Patented Jan. 27,1885.

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Washingluu (No Model.) 7 j' v 2 Sheets-Sheet 2. G. W. LEVALLEY.

ELEVATOR.

Patented JanQZ'i, 1885.

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CHRISTOPHER WV. LEVAL-LEY, OF ST. PAUL, MINNESOTA.

ELEVATO R.

SPECIFICATION forming part of Letters Patent No.3l1,335, dated danuary 27 1885.

Application filed July 26, 1884.

To all whom it may concern.-

Be it known that I. CHRISTOPHER W. LE- VALLEY, a citizen of the United States, residing at St Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Elevators, ofwhich the following is aspecification, reference being had therein to the accompanying drawings.

Figure 1 is a side elevation of a driving wheel and chain having my invention in it. Fig. 2 is an edge view of Fig. 1. Fig. 3 is a side view of one of the buckets. Fig. 4 is a plan or top view of one of the buckets. Fig. 5 is a plan view of one of the links of the chain. Fig. 6 is an end view of one of the links. Fig. 7 is a view of two of the links and buckets turned into proper position for detaching the links from each other.

Similar letters indicate like parts in all the figures.

A are the hubs, and B the spokes, of a driving-wheel, therim of which consists, essentially, of flaring sides or flanges O G, with a bottom, 0, as is plainly shown in Figs. 1 and 2.

Each centrally-open chain-link is cast in a single piece, and consists, essentially, of two side bars, D D, each provided centrally witha down wardly-projecting flange, d, the outer faces of the two flanges converging as shown in Fig. 6, they being of such form as to fit closely between the converging flanges G O of the driving-wheel, substantially as customary in that class of chains which are driven by frictional contact. The end bar E eis sub stantially circular in cross-section, but is provided upon its outer face with a semicircular recess or groove, 6, as is shown plainly in Figs. 1 and 7. The opposite end bar, F, is circular in cross-section and of such diameter as to fit closely within the recess e. Each bucket G H has two parallel sides, one inclined side or end, 9, and a curved side or end, h, the walls of the bucket being by preference as thin as it is practicable to make them of cast metal, it being my intention to make them of malleable iron. Each bucket is provided with a hook or connecting-loop, I t, provided with a trans verse seat, which is circular in cross-section and of an internal diameter which is about equal to the external diameter of the end bar E. The tlllOiLlJi extends the full length of the seat,

(No model.)

and is of a width about equal to the outside diameter of the end bar F, which is about the same as the vertical width of the side bars, D D, adjacent to the end bars. The width of each bucket is about equal to the width of the space between the side bars of the chain-links.

c c are stops or ribs upon the outer faces of the sides of the buckets, and each bucket has a wing,f, projecting from the upper edge of its curved end h.

From an examination of the drawings it will be readily understood that when the parts are placed in the position indicated in Fig. 7 the links and buckets may be united to form a chain by first inserting one of the end bars, F, within the connecting loop or coupler I t, the end bar F of the link being inserted through the throat 1', when preferred.

After the end bar, F, has been placed in position the end bar E a may be thrust into the coupler by theside of the end bar F, by pushing it (the end bar E 6) into the coupler endwise, the ends of the side bars passing through the throat t. It will also be understood by an examination of the drawings that when the chain-links are straightened out into their usual working positions it is impossible to remove the end bars from the couplers, thus preventing all liability of accidental displace ment, without, however, interfering with taking the chain apart, when desired, by first placing two adjacentlinksin the unusual rela tive position indicated in Fig. 7. It will also be understood by an examination of Fig. 1 that the greater part of the weight of the bucket is in rear of the coupler-that is to say, the part It is the heaviestso that when the buckets are moving in an upward direction, as at the left hand of Fig. 1, their upper edges will be maintained in a substantially horizontal plane, the ribs 0 c engaging with the front or outer edges of the side bars. It will also be understood that the wheel moves in the direction indicated by arrow 1 of Fig. 1, and that as the part h of each bucket engages with the bottom G of the grooved periphery of the wheel the bucket will be tilted into the positions shown in Fig. 1, whereby the discharge of its contents is facilitated. The engagement of the lip or flange f with the coupler of the'preceding or next upper bucket will prevent the bucket from being tilted too lines, Fig. 1, when it is desired to take the links apart, in order that two adjacent links may be moved into the position indicated in Fig. 7, such dotted-line position being preferably the one which the flange occupies when it is first made; but I do not wish to be limited to making the flange integrally with the body of the bucket, because it might be made in a separate piece and afterward attached; or the wingf may be omitted or made of such length that the bucket can be turned into the position shown in Fig. 7 by tilting the bucket immediately above it in the same direction far enough to permit the wing to pass through the space where the cylindrical seat is cut away or omitted to form the throat t.

What I claim is- 1. In an elevator, the combination of rectangular links, and buckets provided with couplers, each coupler being adapted to re ceive and retain two end bars of adjacent links, substantially as set forth.

2. In an elevator, the combination of rectangular links, and buckets provided with couplers each adapted to receive two end bars of adjacent links and to vibrate thereon, substantially as set forth.

3. The combination of the drive-chain links the end bars of which are of different diameters, and an elevator-bucket provided with a seat for the end bars of two adjacent links, the larger end bar being adapted to hold the smaller end bar in its seat, substantially as set forth.

4. The combination of the chain-links and the buckets provided with couplers adapted to receive the end bars of two adjacent links, the throat t of the coupler being of less width than the diameter of one of the end bars, whereby the end bar of one link locks the end bar of the adjacent link in position, substantially as set forth. I

5. In an elevator, the combination of the chain-links having end bars of-diiferent diameters, and the buckets provided with couplers adapted to receive the end bars of two adjacent links and having an internal diameter equal to the diameter of thelarger end bar of the link, substantially as set forth.

6. The combination, with the buckets provided with the couplers, of the chain-links each having at one end a circular end bar and at the opposite end a recessed end bar, substantially as set forth.

7. In anelevator, the combination of the chain-links each having at one end acircular end bar and at the opposite end a recessed end bar, and having an internal diameter equal to the diameter of the larger end bar of the links, substantially as set forth.

In testimony whereofI affix my signature in.

presence of two witnesses.

CHRISTOPHER WV. LEVALLEY. Witnesses:

A. L. FAULKS, GEO. S. BENNETT. 

